id:A048013 - OEIS Search Results

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Number of nonempty subsets of {1,2,...,n} in which exactly 4/5 of the elements are <= (n-1)/3.

+0
1

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, 10, 11, 55, 60, 65, 195, 210, 225, 525, 560, 595, 1326, 1413, 1501, 3933, 4230, 4536, 13860, 15015, 16215, 49335, 53460, 57750, 163175, 176345, 190035, 509067, 549094, 590759, 1580761, 1705795 (list; graph; listen)

	OFFSET	`1,13`
	CROSSREFS	`Sequence in context: A045522 A054967 A048031 this_sequence A048048 A136835 A104627` `Adjacent sequences: A048010 A048011 A048012 this_sequence A048014 A048015 A048016`
	KEYWORD	`nonn`
	AUTHOR	`Clark Kimberling (ck6(AT)evansville.edu)`

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Last modified November 30 13:13 EST 2009. Contains 167758 sequences.

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